Technology & Science
Apple restores Blood Oxygen on U.S. Apple Watches via iOS 18.6.1 after Customs greenlight
On August 14, 2025, Apple re‑enabled blood‑oxygen readings on U.S.-sold Apple Watch Series 9/10 and Ultra 2 by offloading calculation to paired iPhones, a software “design‑around” allowed by a recent U.S. Customs ruling while the Masimo patent fight continues.